PHP & XPath Query - php

Question

I have an XML file similar to the text below:
<?xml version="1.0" standalone="yes"?>
<Calendar xmlns="urn:AvmInterchangeSchema-Calendario-1.0">
<Date>
<Day>12/04/2017</Day>
<TypesDay>
<Type>Test 1</Type>
<Type>Test 2</Type>
<Type>Test 3</Type>
</TypesDay>
</Date>
</Calendar>
And I am using this Xpath to select the nodes:
$xml = simplexml_load_file("file.xml");
$response = $xml->xpath('//*[text()="'.date("d/m/Y").'"]');
How can I take the "TypesDay" entries if that condition is met?
I hope not to create duplicates ... I'm going crazy for hours and it will definitely be a trivial thing.

Answer 1

There are a few approaches to do this. First of all, you should register the namespace:
$xml->registerXPathNamespace('x', 'urn:AvmInterchangeSchema-Calendario-1.0');
I'm assuming that your node name with the value 12/04/2017 could change.
First
Find a node called TypesDay inside the named namespace x that the parent node has a child node with value 12/04/2017
$response = $xml->xpath('//*[*[text()="'.date("d/m/Y").'"]]/x:TypesDay');
Second
Find a node called TypesDay inside the named namespace x that is sibling of node with value 12/04/2017
$response = $xml->xpath('//*[text()="'.date("d/m/Y").'"]/following-sibling::x:TypesDay');
The result for both is:
array(1) {
[0]=>
object(SimpleXMLElement)#2 (1) {
["Type"]=>
array(3) {
[0]=>
string(6) "Test 1"
[1]=>
string(6) "Test 2"
[2]=>
string(6) "Test 3"
}
}
}
After all, if you want only the entries, just add the next level /x:Type:
$response = $xml->xpath('//*[*[text()="'.date("d/m/Y").'"]]/x:TypesDay/x:Type');
Or:
$response = $xml->xpath('//*[text()="'.date("d/m/Y").'"]/following-sibling::x:TypesDay/x:Type');
Result:
array(3) {
[0]=>
object(SimpleXMLElement)#3 (1) {
[0]=>
string(6) "Test 1"
}
[1]=>
object(SimpleXMLElement)#4 (1) {
[0]=>
string(6) "Test 2"
}
[2]=>
object(SimpleXMLElement)#5 (1) {
[0]=>
string(6) "Test 3"
}
}